GPA doesn't work with the 0.3 series of gpgme, which is the needed packagethat communicates between gnupg and gpa. GPA works with 0.4 series only.Unfortunately many current packages depend on the 0.3 series (sylpheed-claws if compiled with support). 0.3 and 0.4 cannot co-exist. If you want afrontend for PGP try seahorse. There is an old one in incoming. Must berecompiled against latest gnome I think.